
 
 
 
Audio Controller Module Description 
 
The Audio Controller Module provides digitized alarm 
tones and digitally recorded voice messages and message 
construction, and manages both microphone inputs and other 
auxiliary inputs connected to the optional Auxiliary Audio 
Input Module. Tones and voice messages are digitally 
recorded and stored in the audio control module’s message 
memory. 
Two versions are available: Analog and Digital. Systems 
must be either analog or digital, not intermixed. One audio 
control module controls the entire audio system. 
Common audio control board features: 
On-board digital message memory provides up to 
2 minutes at normal or 1 minute at high resolution 
Connects to optional 4-input audio input modules (two 
maximum) for a total of up to 6 microphones and 11 
distinct audio inputs 
Memory expansion is available to provide up to 
8 minutes or 32 minutes at normal resolution 
(4 minutes or 16 minutes at high resolution) 
Connections for a Master Microphone and one 
Remote Microphone, compatible with standard or 
noise-canceling microphones 
Master telephone to audio interface connection uses the 
audio bay’s Power Distribution Interface Module (PDI) 
Local panel speaker output with on-board volume control 
On-board download port for message loading 
The microphone ready-to-talk LED is located on the 
front panel audio control module (see p. 4) and 
requires connection to a 64 LED/64 switch controller 
Audio risers, either digital or analog, may be directly 
connected to 31 remote nodes; for applications requiring 
audio risers to more than 31 remote nodes, alternate 
connection methods are available, contact your Simplex 
product representative for details 
Analog Audio Controller Modules 
 
Analog audio control modules are for systems that 
require one or two simultaneous channels of audio 
information per the following feature summary. 
Built-in 10 VRMS riser output eliminates the need for 
separate riser amplifiers available as Class B or Class A 
Messages can play on one or both risers simultaneously, 
with the same or a different message 
Analog audio controllers are for connection to analog 
input audio amplifiers and audio risers only 
On-board status LEDs assist with setup and 
troubleshooting 
Digital Audio Controller Modules 
 
Digital audio control modules are for systems that 
require more than two simultaneous channels of audio 
information per the following feature summary. 
Up to 8 channels of information at normal resolution are 
available (4 channels at high resolution) on one twisted 
wire pair 
Primary 1 Digital Audio Riser (DAR) output can be either 
wired Style 4 or Style 7; Primary 2 DAR is an identical, 
separate output for Style 4 connections, typically to local 
MINIPLEX voice transponders 
Digital audio controllers are for connection to digital 
input audio amplifiers and digital audio risers only 
 
Audio Tone List 
 
The Temporal Pattern is available for compatible tones 
(1/2 sec on, 1/2 sec off, 1/2 sec on, 1/2 sec off, 1/2 sec on, 
1-1/2 sec off) to indicate evacuation. The following is a 
list of the standard audio tones. 
Horn,continuous 500 Hz tone, primarily used for coded 
systems or general temporal pattern signaling 
Chime,a digitally recorded mechanical chime tone, 
normally used free-running or for coded operation 
Bell,a digitally recorded mechanical bell sound, 
normally used free-running, for coded systems, or 
general temporal pattern signaling 
Fast Whoop, a quickly ascending tone 
Slow Whoop,a slowly ascending tone 
High/Low,with high frequency of 750 Hz for 100 ms and 
low frequency of 500 Hz for 400 ms 
Beep,500 Hz tone of 0.7 s on, 0.7 s off 
Stutter,500 Hz tone with on and off times of 100 ms 
Wail,ascends, then descends between 600 to 940 Hz 
GSA Tone,continuous 2000 Hz tone 
Audio Controller Message Description 
 
Zone Coded Signaling is available using tones or 
spoken numbers. Spoken coded messages can be used in 
place of conventional pulse tone coding to eliminate 
counting and interpretation of the zone coded location. 
For example, a fire alarm zone such as First Floor East, 
Smoke Detector Room 23 will be Code 1123. 
Two possible transmission schemes are: 
1. Conventional Zone Coded Signaling where 
T = Tone: T...T...TT...TTT...T...T...TT...TTT... 
2. Spoken Coded Signaling: 
Code, one..one..two..three; Code, one..one..two..three 
The Audio Controller has the ability to precede spoken 
codes with phrases and alert tones. As an alternative, the 
previous example could have been preceded with a chime 
tone. The word “code” could be replaced with the phrase 
“Doctor Firestone, please dial...”. 
Preprogrammed Special Messages can be ordered. 
Up to 32 minutes of special phrases and messages are 
available to meet specific applications. The standard 
Evacuation Message is: “Attention... Attention... 
Attention...An emergency has been reported.... All 
occupants walk to the nearest stairway exit and walk 
down to your assigned re-entry floor or main lobby... Do 
not use the elevator... Walk to the nearest stairway.... Do 
not use the elevator.... Walk to the nearest stairway.” 
Custom Message Ordering is summarized below: 
Model Description 
4100-8804 Select when Custom Messages are required, 
choose message types from below as required 
(minimum quantity of one) 
4100-0822 Custom Messages from Tape Order (1) 
4100-082x for 
each (2) complete 
messages without 
spliced phrases; 
or for each (50) 
spliced phrases 
4100-0823
Custom Messages from 
Transcript; NOTE: Send 
transcript in advance to 
Applications Engineering to 
verify phrase quantity 
4100-0824 Custom Messages from 
Archive 
 2 S4100-0034-12 3/2012